Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

Summary of Significant Accounting Policies

Changes in warranty reserve

During the three and six months ended June 30, 2017 and 2016, changes in the warranty reserve consisted of the following (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Accrued warranty reserve, beginning of period	$	3,490	$	2,927	$	4,033	$	3,333
Reserve provided		1,393		1,362		1,809		1,487
Payments		(1,019)		(708)		(1,978)		(1,239)
Accrued warranty reserve, end of period	$	3,864	$	3,581	$	3,864	$	3,581

Reconciliation of net income and weighted average shares outstanding for the calculation of basic and diluted earnings per share

The following table represents a reconciliation of the net income and weighted average shares outstanding for the calculation of basic and diluted earnings per share for the three and six months ended June 30, 2017 and 2016 (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Numerator:
Basic net income	$	647	$	117,361	$	3,086	$	118,152
Effect of dilutive securities		—		1,200		—		2,400
Diluted net income	$	647	$	118,561	$	3,086	$	120,552
Denominator:
Basic weighted average shares outstanding		22,487		22,403		22,479		22,396
Effect of dilutive securities		313		4,245		306		4,219
Diluted weighted average shares outstanding		22,800		26,648		22,785		26,615
Basic earnings per share	$	0.03	$	5.24	$	0.14	$	5.28
Diluted earnings per share	$	0.03	$	4.45	$	0.14	$	4.53